C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

throttle body cooling ?

Thread Tools
 
Search this Thread
 
Old Jun 9, 2018 | 12:42 PM
  #1  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default throttle body cooling ?

Another problem !!!

I just removed the throttle body. The lower coolant hose is still connected and the vacuum line at the bottom is disconnected. Is it ok to just remove this hose and plug the hole in the intake? And is the vacuum supposed to be hooked up to the tb?

Last edited by dozerman1; Jun 15, 2018 at 11:28 AM. Reason: ANOTHER PROBLEM
Reply
Old Jun 9, 2018 | 01:17 PM
  #2  
playsdixie's Avatar
playsdixie
Drifting
 
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
Default

depends on where you live....you'll need them in Alaska....
Reply
Old Jun 9, 2018 | 02:01 PM
  #3  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

First thing I did with this '88 and the prior one was the TB coolant bypass mod.

Check front of your radiator for debris collection, check radiator for proper coolant flow & pressure, replace the T-stat. I don't like the engine running in to 200+deg. temp range, so have always (for >17yrs) run a 160 deg. T-stat.
Reply
Old Jun 9, 2018 | 02:16 PM
  #4  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default

Originally Posted by playsdixie
depends on where you live....you'll need them in Alaska....
South Texas
Reply
Old Jun 9, 2018 | 02:18 PM
  #5  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default

Originally Posted by 65Z01
First thing I did with this '88 and the prior one was the TB coolant bypass mod.

Check front of your radiator for debris collection, check radiator for proper coolant flow & pressure, replace the T-stat. I don't like the engine running in to 200+deg. temp range, so have always (for >17yrs) run a 160 deg. T-stat.
That's what I needed to know.... I'm going to pull the radiator next and check it out... the temp runs as far up as 240 with the a/c on... when it does that I have to shut the a/c off and it will cool down some .It just depends on how hot it is out side....
Reply
Old Jun 9, 2018 | 02:19 PM
  #6  
Bfenty's Avatar
Bfenty
Drifting
 
Joined: Mar 2017
Posts: 1,897
Likes: 164
From: Nashville TN
2017 C4 of Year Finalist
Default

Originally Posted by dozerman1
South Texas
it's not hurting anything. clean your radiator, that's almost certainly all you need to keep from overheating.
Reply
Old Jun 9, 2018 | 02:38 PM
  #7  
billschroeder5842's Avatar
billschroeder5842
Zen Vet Master Level VII
Supporting Gold
Veteran: Navy
10 Year Member
Liked
Loved
 
Joined: Mar 2016
Posts: 5,214
Likes: 1,173
From: Southlake, TX
Default

Read Bfenty's PSA on summer cooling.

BTW...240 is not THAT crazy of a number but it should go lower. Again, clean your radiator and look for debris BETWEEN the AC condensor and the radiator.
Reply
Old Jun 9, 2018 | 05:33 PM
  #8  
playsdixie's Avatar
playsdixie
Drifting
 
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
Default

I'm in S Florida....I don't see 200 with the a/c on in traffic...so somethings not right....I do have a lower t stat.....
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Jun 9, 2018 | 06:20 PM
  #9  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default

Originally Posted by playsdixie
I'm in S Florida....I don't see 200 with the a/c on in traffic...so somethings not right....I do have a lower t stat.....
My thermo is a 165, guess next option is pulling the radiator...
Reply
Old Jun 9, 2018 | 10:25 PM
  #10  
Benny42's Avatar
Benny42
Drifting
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2006
Posts: 1,423
Likes: 96
From: Magnolia Tx
Default

Fill in your profile. What year is your car. The fan turn temp is 235* +- a few. 240* is pretty warm but not "turn off the A/C" hot. Do clean between the rad & a/c condenser and report back.
Reply
Old Jun 9, 2018 | 11:03 PM
  #11  
belairbrian's Avatar
belairbrian
Melting Slicks
Liked
Loved
Top Answer: 1
Top Answer: 3
 
Joined: Oct 2016
Posts: 2,024
Likes: 363
From: Central Alabama
Default

For some reason no one mentioned that the coolant flows through the throttle body to warm it in cold weather, not to cool it in warm weather.

That's why so many people bypass it. Not really needed a lot of places.
Reply
Old Jun 10, 2018 | 01:10 AM
  #12  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default

Originally Posted by Benny42
Fill in your profile. What year is your car. The fan turn temp is 235* +- a few. 240* is pretty warm but not "turn off the A/C" hot. Do clean between the rad & a/c condenser and report back.
It is a 1989 I have the fan set to bypass the ECM. It has separate wiring and comes on at 190 and doesn't shut off until 180. The fan is an aftermarket fan that produces about 2500 cfm...

Last edited by dozerman1; Jun 10, 2018 at 01:12 AM.
Reply
Old Jun 10, 2018 | 08:46 AM
  #13  
Bfenty's Avatar
Bfenty
Drifting
 
Joined: Mar 2017
Posts: 1,897
Likes: 164
From: Nashville TN
2017 C4 of Year Finalist
Default

Originally Posted by dozerman1
It is a 1989 I have the fan set to bypass the ECM. It has separate wiring and comes on at 190 and doesn't shut off until 180. The fan is an aftermarket fan that produces about 2500 cfm...
that's...a lot. You shouldn't see 230 with a fan like that. my stock fan comes on and instantly I see cooling even in 90+ degree weather. Again, cleaning your radiator is probably the best solution. It's not terribly hard to remove but even if you don't want to remove the radiator, removing the shroud and using a pressure washer/compressed air on the area in between the condenser and radiator with go a long way. You should also blast it from inside the engine compartment to dislodge the crap that gets stuck in the radiator itself (it's amazing how much gets stuck in the fins). Be careful not to bend them.
Reply
Old Jun 11, 2018 | 11:14 AM
  #14  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,126
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default

Originally Posted by belairbrian
For some reason no one mentioned that the coolant flows through the throttle body to warm it in cold weather, not to cool it in warm weather.

That's why so many people bypass it. Not really needed a lot of places.
Correct.
Reply
Old Jun 15, 2018 | 11:29 AM
  #15  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default

Originally Posted by playsdixie
depends on where you live....you'll need them in alaska....:d
asking a new qquestion
Reply
Old Jun 15, 2018 | 11:31 AM
  #16  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default

Originally Posted by 65z01
first thing i did with this '88 and the prior one was the tb coolant bypass mod.

Check front of your radiator for debris collection, check radiator for proper coolant flow & pressure, replace the t-stat. I don't like the engine running in to 200+deg. Temp range, so have always (for >17yrs) run a 160 deg. T-stat.
new question......
Reply
Old Jun 15, 2018 | 11:35 AM
  #17  
dozerman1's Avatar
dozerman1
Thread Starter
Advanced
 
Joined: Apr 2018
Posts: 77
Likes: 1
From: Sheridan Texas
Default

Originally Posted by bfenty
that's...a lot. You shouldn't see 230 with a fan like that. My stock fan comes on and instantly i see cooling even in 90+ degree weather. Again, cleaning your radiator is probably the best solution. It's not terribly hard to remove but even if you don't want to remove the radiator, removing the shroud and using a pressure washer/compressed air on the area in between the condenser and radiator with go a long way. You should also blast it from inside the engine compartment to dislodge the crap that gets stuck in the radiator itself (it's amazing how much gets stuck in the fins). Be careful not to bend them.

ck out new question. And btw, how do i open a new post?
Reply
Old Jun 15, 2018 | 02:07 PM
  #18  
playsdixie's Avatar
playsdixie
Drifting
 
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
Default

Originally Posted by dozerman1
ck out new question. And btw, how do i open a new post?
there's a tab top left of your home screen...wondering why you need a new one as you have some really knowledgeable guys on this thread trying to assist you...any question you have will go back to those guys.....
Reply

Get notified of new replies

To throttle body cooling ?





All times are GMT -4. The time now is 06:27 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE